Home / 7,130.88-10,703.52-3,670.56

Finding the Fourth Proportional to 7,130.88, 10,703.52 and 3,670.56

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Solution

The fourth proportional to 7,130.88, 10,703.52 and 3,670.56 is: 5,509.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.88 : 10,703.52 = 3,670.56 : x
  2. Step 2: Convert to fraction form
    7,130.88/10,703.52 = 3,670.56/x
  3. Step 3: Cross multiply
    7,130.88x = 10,703.52 × 3,670.56
  4. Step 4: Simplify right side
    7,130.88x = 39,287,912.37
  5. Step 5: Solve for x
    x = 39,287,912.37/7,130.88
  6. Step 6: Final answer
    x = 5,509.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.